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| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko |
| July 2007 at Rebun Island |
July 2007 at Rebun Island |
| Family | Melanthiaceae (also placed in Liliaceae) |
| Tribe | Melanthieae |
| Scientific name | Anticlea sibirica (L.) Kunth |
| Synonyms | Anticlea japonica (Makino) Gates; Leimanthium sibiricum (L.) Turczaninow; Melanthium sibiricum L.; Zigadenus japonicus Makino; Zygadenus makinoanus Miyabe & Kudo; Zigadenus sibiricus (L.) A. Gray |
| Common name | (Japanese common name) rishiri-sou (リシリソウ, 利尻草 [meaning: Rishiri Island weed]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido (Rishiri Island, Rebun Island) |
| (Other nations) Russia, Korea, China, Mongolia | |
| Habitat | Subalpine rocks or field |
| Chromosomal number | 2n=32 |
| Description | Bulbs ca. 7mm wide. Plants 17-30cm tall, non hair. Leaves 13-18cm long, non hair. Flowers pedicels 10-13mm long, 6 pale green perianths each 6.5mm long, 6 stamens, flowering in July to August. Perennial plants. |
| Reference | Zigadenus sibiricus (Linnaeus) A. Gray |
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| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko |
| July 2007 at Rebun Island |
July 2007 at Rebun Island |
